<template>
  <el-form ref="deptForm" label-width="120px" :rules="rules" :model="form">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option
          v-for="item in list"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input
        v-model="form.introduce"
        style="width:80%"
        placeholder="1-300个字符"
        type="textarea"
        :rows="3"
      />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { addDepartments, getEmployeesSimple,
  getDepartmentsDetail, editDepartments } from '@/api/departments'
export default {
  props: {
    originList: {
      type: Array,
      required: true
    },
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log('valicode', value)
      // 遍历新数组取出里面的code
      let existCodeList = this.originList.map(item => item.code)
      // 判断是否为编辑
      if (this.isEdit) {
        // this.id是点击按钮获取的id     item.id是所有数据的id         取出所有不跟当前id一样的code
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log(existCodeList)
      if (existCodeList.includes(value)) {
        // 已经存在该编码就报错
        callback(new Error(`部门编码${value}已存在`))
      } else {
        // 放行
        callback()
      }
    }
    const validName = (rule, value, callback) => {
      // 取出子组件pid与父组件id的元素,并取出他们的名字
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      // 如果输入的值是数组中的元素就给一个提示
      console.log('被占用的名字列表', existNameList)
      if (this.isEdit) {
        const pid = this.originList.find(item => item.id === this.id).pid// 根据this.id找到第一个id匹配的对象
        const brothers = this.originList.filter(item => item.pid === pid)// 找到所有pid跟自己一样的(包括自己)
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)// 找到除了自己id的其他对象,并取出他们的名字
      }
      if (existNameList.includes(value)) {
        callback(new Error(`部门名称${value}已存在`))
      } else {
        // 不是就放行
        callback()
      }
      // console.log(existNameList)
    }
    return {
      // 表单收集的数据对象
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      list: [], // 保存的是部门负责人
      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1-50个字符的部门名称', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1-50个字符的部门编码', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
          // { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请输入部门编码', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入1-300个字符的部门介绍', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.loadEmployeesSimple()
    // 如果是编辑部门，才有需要获取部门详情数据进行回填
    if (this.isEdit) {
      this.loadDepartmentsDetail()
    }
  },
  methods: {
    // 加载部门详情数据
    async loadDepartmentsDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log(res, 'getDepartmentsDetail')
        // 添加获取到的数据填充到表单
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 加载员工数据
    async  loadEmployeesSimple() {
      try {
        const res = await getEmployeesSimple()
        console.log(res, 'getEmployeesSimple')
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 实现新增子部门
    async doAdd() {
      try {
        // this.form ,参数缺少pid？？？？
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'addDepartments')
        // 子传父---》// 关闭弹层，重新刷新页面
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async doEdit() {
      // 实现编辑部门功能
      try {
        // this.form ,参数缺少pid？？？？
        const res = await editDepartments(this.form)
        console.log(res, 'editDepartments')
        // 子传父---》// 关闭弹层，重新刷新页面
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
    //   2. 检验比较复杂，留着后面做
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    hCancel() {
      this.$emit('close')
    }
  }
}
</script>

